Monitor Description
- After the engine has started, the ECM monitors the synchronization status between the soak timer and CPU clock. If these elements are not synchronized with each other, the ECM judges this status to be abnormal, illuminates the MIL, and then stores the DTCs.
- If the soak timer activates the ECM although not so long period has passed since ignition switch is turned to OFF, or if the soak timer does not activate the ECM although a great deal of time has passed since ignition switch is turned to OFF, the ECM judges that the malfunction occurs in the soak timer, illuminates the MIL, and stores the DTCs next time ignition switch is turned to ON.
MONITOR STRATEGY
| Related DTCs | P2610: ECM engine off timer performance (soak timer IC) |
| Required Sensors/Components(Main) | ECM |
| Required Sensors/Components(Related) | - |
| Frequency of Operation | Once per driving cycle |
| Duration | 0.128 second: Timer diagnosis, full count diagnosis and time diagnosis (Case 1) Immediately after: Time diagnosis (Case 2) and wake-up diagnosis |
| MIL Operation | 2 operation cycle |
| Sequence of Operation | None |